Component Inspection

Engine Control
P0326 Knock Sensor 1 Circuit Range/Performance (Bank 1 or Single Sensor) - Inspection/Repair:_:Component Inspection

Component Inspection

1. Component resistance inspection
(1) Measure resistance between signal terminal and ground terminal of the sensor connector(Component side).

Specification :Approx. 5MOhms at 20°C(68°F)




2. Output signal inspection
(1) Remove knock sensor from vehicle and secure (across mounting boss) in a shop vise.
(2) Set up an oscilloscope as follows :
Channel A (+): Signal terminal, (-): Ground terminal
(3) Rap on vise with a ball peen hammer while monitoring oscilloscope screen (there should be a spike of less than 1 volt with each hammer strike).

Specification :knock sensor send a voltage spike with hammer strikes




3. Installation torque inspection
(1) Check the installation torque of the knock sensor.

Specification :Approx. 16 - 28Nm(160 - 250 kg-cm,11.8 - 18.4 lb-ft)

4. Has a problem been found?